Miter-box.



L. W. JACOBS.

MITER BOX.

APPLICATION MEDIUM-12.1915.

nHH UHHHHH I HP VH Patented Dec. 4,1917.

2 SHEETS-'SHEET 1.

L. W. JACOBS.

Patented Dec. 4,1917.

2 SHEETS-SHEET 2.

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BETTER-BOX.

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To all whom it may m.-

Be' it known that T, LUMAN W. JACOBS,

' a eitiZen of the United States, residing at Tolland, in the county ofTolland and State of'Connectieut,have invented certain new and usefulImprovements in lditer-Boxes, of which the following a specification.

This invention relates to miter boxes. In Letters Patent No. 414,544granted to me November 5, 1889, have disclosed a miter box, and amongthe principal objects of the invention are to cheapen the cost of'production, and increase the effectiveness of miter boxes of the samegeneral type as that illustrated in said Letters Patent. The inventionpossesses other features of novelty and advantage which with theforegoing will be stated at length in the following de scription whereinT will set forth in detail that one of the several convenient forms ofembodiment of the invention which have selected for illustration 1n. thedraw ngs aceomoan in and formin oart of the I resent.

b i b specification. 1 do not restrict myself to this particulardisclosure; I may depart therefrom in several respects within the scopeof the invention definedby the claims following said description.

Referring to said drawings:

Figure l is a front elevation of a miter box involving my invention.

Fig. '2 is a bottom plan view of said miter box with the ends brokenaway and showing certain of the moving parts in two different positions.

Fig. 3 is an end elevation asseen from the left in Fig. *1, the beadshowing in said Fig. 3 having its rear end broken away.

Fig. 4 is a rear elevation of a standard and supporting means withcertain adjunctive .devices hereinafter more particularly described,showing the standard and an element carried thereby in differentadjusted positions by full and dotted. lines respec- .tively.

and a cooperating clamp, .intended especially to illustrate the actionof said clamp.

Fig. 8 is a view of an arm as seen from the left in. Fig. 1, the 'latchp1ececarr1ed Specification .of Letters Patent. Patient-fled 111m}. 4i,191%; Application filed. June 2, le s. s eri 'no. 31,562.

thereby and certain cooperating elements hereinafter more particularlydescribed, the segn ent' cooperative with the latch piece beingrepresented in cross section.

Fig. 9 is a detail view of a medifiedforni j .-e manner. as illustratedthis bed or were table 4c has extending. cress'wise or transversely ofit the channels 5 from the bottoms of which the T shaped beads ortonguesrG rise, the upper surfaces of the heacs of the beads or tongues5 being in. the plane of or flush with the upper surface of the bed orwork table These channels are shown near the ,outer ends of the or worktable. The channels 5 open at their oppesite ends in the front and reared. as of the work table but the beads project beyond the rear edge ofsaid work table and through holes or openings as 7 in the back 3. forreason that will hereinafter appear. The beads or tongues are adapted tointerchangeably receive and guide the supporting member of a gageelement of si iitable character as will hereinafter appear. Forsimplicity I use only one of such supporting members, but if desiredboth beads may be equipped with such a part' The supporting member ,asshown grooved as at 9 to slidinglyreceive in alternation the tongues 6,the groove 9 as will be inferred being of T-form in cross sectien.Tapped'through the supporting member Sis a thumb screw 10 which engagesthe rod 11 constituting the body or main section of the gage element andextending through the supporting member, the screw serving not only tohold the rod 11 and therefore the gage element in place, but bygpressing p j .eOIlZtl and fastened I to .theframe 2 in any dc the rod 11against the "bead, l1olding t1'1e sup} 7 porting meinber 8 in anadjusted position.

' *The rod 11 extends longitudinally of the work table or bed 4:andslidingly receives thejblock 11-" adapted in turn to ,slidingljrreceive the rod ,152 equipped a projection as 12' pinned or otherwisesuitably fasthe inner end of the rod 11. The two rods,

. as will be noted are in parallelism and they I with the connectingblock 11 constitute such a gagev element as will meet my conditions.Owing to the connection of the two rods with the connecting block 11 thegage ele-.

ment can be lengthened and the adjusted position will. be maintained bythe thumb screws 11" and 12 tapped through said connecting block 11 andadapted for such purpose to bear against the two parallel rods 11 and12. I have shown the gage means in the two adjusted positions thereof;the rod 11 being positioned for gaging and the various parts beingclamped as represented in their full line positions in Fig. 6. In thisevent the outer end of the work while being sawed, will bear against theinner end of the rodll. To use the projection 12 as agage portion theset screw 10 will be loosened and the rod 11 pulled away from thesupporting member 8, following which the latter will be passed throughthe opening which it is opposite onto the projecting end of the bead 6as represented by the dotted lines in said Fig. 6. The rod 11 will thenbe passed through the supporting member 8 and clamped by the screw 10,following which the thumb screws 11 and 12 willbe loosened so as topermit the adjustment of the block 11 on the rod 11 and the rod 12through. the block so as to bring the projection 12 in the position tobe engaged by the outer end of the work. lVhen the adj ustment isaccomplished the two screws 11" and 12 will be set. By this construetion I provide a simple and effective stop means against which work ofvarying lengths can abut, the side of the work as will be clear,engaging the upright back 3.

Located below the frame 2 is an arm or lever 13 pivoted as at 15 betweenits ends to present long and short branches, to the frame at the rearapproximately centrally of'the length thereof. The rear or short branchof this lever supports a standard as ll tippable laterally to vary theangularity of-the saw guide, connected with said stand 'ard as willhereinafter be more particularly described. Rigid with the frame 2 andlocated near the front on the under side thereof is the segment 16cooperative with the latch piece 17 pivoted between the sides of thefork 18 at the front of the arm or lever "13. One of the sides;(the oneon the right in 'Fig. 2) 0f the bifurcation or fork 18 is longer thanthe other, projecting in factforwardly beyond the sector 16, the

.SllOI't sideiof the fork extending short of the sector. The longerbranch or side of the vertical position.

running in th fork 18 is equipped with an anti-friction roller 20, thestandard or upright 11 being furnished with a complemental anti-frictionroller 21 in transverse alincment with the roller 20, the upper portionsof the peripheries. of the said rollers extending slightly below theupper surface of the table or bed a so that said rollers prevent the sawcutting through the table. Said upper portions are above the frame 2 toprevent the saw coming in contact with said frame.

The upright or standard 14: has a forwardly extending portion 22overhanging the table or bed 4: and to which the carrier 23 for the sawguide is rigidly connected all as will hereinafter more particularlyappear. It might be noted in passingphowever, that the saw guidecomprises two checks or side plates connected with the carrler, and itwill, therefore, be clear that the standard or upright let is tilted ortipped laterally the saw guide is correspondngly tipped. The means shownfor effecting this action will now be set forth. The arm 18 is furnishedon the upper side of the rear branch thereof with two conical or pointedbearing members 24-. adapted to fit conical seats 25 in the bottom ofthe standard 14l. Extending freely through a perforation 1n the rearbranch of the swinging arm 13 are screws 26 tapped into the under sideof the standard or upright 14. Tapped through said rear branch arescrews 27 havmg a bearing against the underside or foot of saidstandard. the screws 26 being situated between the cone pointedprojections :24 and the screws 27. In Fig. i the standard or upright llis shown as occupying a 1 By running out the screws 26 and running inthe screws 27, the necessary extent, the standard can be tipped to thedotted line position, the standard swinging on the cone pointedprojections 24. By

M e screws QGand running out the screws 2!, the standard can be tippedto tire right of its full line position in said Fig. at.

The overhanging portion 22 of the standaid or upright l is verticallychanneled on lts inner side as at 28 to receive one le of the saw guidecarrier 23 (the right leg in F 1g. 1), the saw guide carrier bein ofinverted loop or ti-form. From this will be clear that the carrier 23 isvcrticallv adjustable so to regulate the distance bf the saw guide fromthe work table 4-. Pivoted also to said overhanging portion 22 is theclamping device 29 adapted to be set by the screw 30 pract1cally in themanner shown in my prior Letters Patent hereinbefore referred to.-

As already described the latch piece 1.7

.is pivoted between the sides of the fork,

tion of the latch. piece pnojecting beyond the long branch of the forkand also beyond the anti-friction wheel 20. so as tobe readilyaccessible. The detent or operative portion of' the latch piece 17 isadapted to enter the notches ofthe segment- 16. in the various 7mitering adjustments of the arm or lever 3.

The latch piece has to the rear of its center of motion the projection32 against which the spring 33 acts and tends constantly to maintain thelatch piece in holding relation. The butt or shank of the spring isfasten-ed as by a screw to the underside of the arm. By pushing downwardupon the forward end of the latch piece 17 the operative portion 31 ofsaid latch piece can be moved out of a notch of the segment 16 which itmay occupy as shown by dotted lines in Fig. 8, this further tensioningthe spring 33. When this is, accomplished the arm or lever 13 can beturned around its axis of motion so as to effect a corresponding turningof the standard 14, carrier 23 and saw guide (hereinafter described) tovary the position of the guide with respect to the work. That is to saythe guide can be brought to a right angle to the work or at an acuteangle thereto practically in the manner set forth in my prior LettersPatent.

The saw guide as shown consists of the stationary plate 34: and thespring backed plate 35, the plate 34 being rigid with one side of thecarrier 23 and the plate 35 being movably connected with the other sideof said carrier practically in themanner shown in said Letters Patent.

Pivoted to that side of the carrier 23 to which the plate 35 isconnected is the clamping device 36, the head or inwardly extendingupper, portion of said clamping device overlying the upper edge of theguide plate 35. Tapped through thelower portion of the clamping member36 is the thumb screw 37, the innerend of the thumb screw having abearing against the guide :23. By running in this thumb screw the headof the clamping member will be caused to apply force to the upper edgeof the plate 35 .to press the latter solidly against-a projection likethat denoted by f in Letters Patent No. 414,5M, granted to me November:5, 1889, and to which reference may be had. It will be understood thatthe saw is received between these two guide plates 34E.

I have referred hereinbe'fore to a support ing device :8, and I havementioned the fact that :there may be cases where only one of these needbe provided. There -are other cases such for instance in cutting .crownmolding where it will benecessary to duplicate such a jsupportlngdevice. The supporting device in addition to 1 acting as such or forcarrying a gage clement 1n the. manner {already described also ,acts inturn as a gage "elementnr membe :itself- Th lipporting devices in sawingcrown molding will be adjustable toward and from the back 3;, beingspaced from the back the requisite distance to be abutted by the workwhich as; will be obviousiS. disposed between the respective supportingdevices or gage members 8 and the back 3 or equivalents. Then saidsupporting devices or gage elements '8 are adjusted, the adjustment willbe maintained by setting up the screws 10 which engage the respectivebeads 6, it being evident that when thesupporting devices 8 are actingin their capacity as gage members, the rods 11 are not operativelypositioned, the screws 10 directly engaging the respective beads 6.

In Fi 9 I have shown a modified form of arm. This modified form of armor lever is designated by 13 and in function is exactly like the arm 13already described. The rear branch of the arm 13 is shown provided withtwo screws 26 extending freely through the same and adapted to be tappedinto a standard such as 145 Beside the screws 26 are two other screwstapped through said lever or arm 13 and adapted to abut against saidstandard 14. The arm or lever in addition is equipped with cone point-edprojections 24L adapted to enter conical openings in the bottom of thestandard. The two screws 26 are situated between the screws 27 and thecone pointed projections 2 L. To obtain an adjustment it will benecessary to simultaneously run in or out the two screws 26 and performan exactly opposite function with respect to the two screws 27. In someinstances this construction is desirable especially in large size miterboxes. There may be cases where it is desirable to hold the saw betweenthe elements 34; and 35 and in this event the screw may be utilized.This screw is tapped through the part .35 and by being run in pressesthe saw against the companion and relatively fixed part 34. When thescrew 50 is not in use for the purpose specified, it is backed out atwhich time its point will be approximately flush with the inner surfaceof said part 34.

What I claim is:

1. A miter box comprising a frame provided with a work table, apivotally mount ed arm supported by the work table, a saw guide and itscarrier, a standard to which the saw guide carrier is connected, pro- 1jecting means on the arm, for supporting said standard for tiltingmovemenhand screws, one screw being located betweenthe pro ecting meansand the companion screw.

extending freely through said arm and tapped into said standard and saidcompanion screw being tapped through said arm and having a bearingagainst said standard.

2. A mi'ter bo'x comprising a supporting frame fprovided ,with worktable. a saw,

also

guide and its carrier, a standard to which said guide is connected, anarm pivotally supported by the frame, said arm being provided withconical projections and the standard having conical seats to receivesaid projections whereby the standard will be supported for tiltingmovement, and two screws, one screw being located between saidprojections and the companion screw extending freely through said armand being tapped into said standard and said companion screw beingtapped through the arm and having a bearing engagement against thestandard.

3; A miter'box comprising asupporting frame provided with a work tableon its upper side, an arm pivotally supported between its ends to theunder side of the frame, a saw guide and its carrier, a standardprovided with a portion overhanging said work table, said carrier beingconnected with the overhanging portion for vertical adjustment, meansfor connecting the standard ,with the rear branch of said arm, fortilting movement, and, means for holding said pivotally supported arm inits various adjustments.

4. A miter box comprising a supporting frame ,equippecl with a worktable on the upper side thereof, an arm pivotally supported between itsends on the under side of the frame, the forward branch of the arm beingbifurcated and one branch of the bifurcation extending forwardly beyondthe frame, an anti-friction roller supported by said forwardly extendingbranch, a standard connected with the rear branch ofthe arm and having aportion overhanging the I work table, an anti-friction roller supported"by the standard and alined with the other anti-friction, roller, theupper portions of the peripheries of both rollers extending below theupper surface of the work table, a saw guide and its carrier, the latterbeing connected with said overhanging portion, a latch piece pivotedbetween the'branches of said bifurcation and] having a forwardlyextending manipulating portion, and a segment with which the operativeportion of the latch piece cooperates, and a spring acting against thelatchpiece to move the op- 'erativeportion thereof constantly toward thesegment.

'5. A miter box comprising a supporting frame provided on its under sidewith a segment, an arm p'i'votally supported by the under side of theframe to present two branches, the forward branch of the arm extendingforwardly beyond the frame, an anti-friction roller connected with theextended end of said arm, a saw guide and its carrier, a standardmounted upon-the rear branch of said arm and having an overhangingportion to which said carrier is connected, a spring actuated latchpiece supbeing in the same plane and said plane being below the uppersurface of said work table.

6. A miter box comprising a frame provided on its upper side with a worktable and with a back rising therefrom, a saw guide above the worktable, angularly adjustable with respect thereto, a bead extendingentirely across and from the rear of the work table, the back having anopening through which said bead extends, a supporting device slidablysupported by the bead and movable throughout the entire extent thereofby way of said opening, and a gage member removably connected with saidsupporting device.

7 A mi er box comprising a frame provided with a work table, said worktable having a transverse groove therein and having a T-shaped beadrising from the bottom of the groove, the upper surface of the beadbeing approximately flush with the upper surface of the table, asupporting device having a T-shaped groove to slidingly receive saidbody, a gage member extending through the supporting device, a rodextending through said supporting device and provided with gage means,and a set screw tapped through the supporting device and adapted topress the rod against the bead.

8. A miter box comprising a frame pro vided on its upper side with awork table and with a back rising therefrom, a sawguide above the worktable, angnlarly adjustable with respect thereto, the work table havinga groove extending from the front to the rear thereof and open at itsopposite ends, a bead rising from the bottom of the groove, the beadbeing coextensive with the groove, the back having an opening and thebead projecting through said opening, a supporting device slidablysupported by the bead and movable throughout the entire extent thereofby way of said opening, and a gage member removably connected with saidsupporting device.

9. A miter box comprising a frame provided on its upper side with a worktable and with a back rising therefrom, a sawguide above the work table,angularly adjustable with respect thereto, the work table having agroove extending from the front to the rear thereof and open at itsopposite ends, a bead rising from the bottom of the "groove, the beadbeing coextensive with the 'the bead and movable throughout the entireextent thereof by Way of said opening,a rod tion and being furnished atits outer end removably connected With said supporting with a rigid gagemember. 11) device, a block slidable on the rod and pro- In testimonywhereof I afix my signature vided With means for holding it in an adinpresence of two Witnesses.

justed position thereon, a second rod slid- LUN W. JACOBS.

ably supported by the block in parallelism Witnesses:

With the other rod, the block having means L. L. MARKEL,

tohold the second rod in an adjusted posi- HEATH SUTI-IERLAND.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' Washington, I). G.

